Improvement in lamp-shades



UNITED 'rn'rEs MICHAEL H. COLLINS, OF CHELSEA, MASSACHUSETTS.

IMPROVEMENT IN LAMP-SHADES.

Specication forming part of Letters Patent No. 117,260, (lated July 25, 1871.

Y Alowing speciiication and represented in the accompanying drawing, of which- Figure l is a side elevation of a shade having its body made of paper, and otherwise constructed in accordance with my invention, the said shade being affixed to a chimney. Fig. 2 is a side elevation of a shade having its body made of glass, and otherwise constructed in accordance with my invention, such also being shown as applied to a chimney. Fig. 3 is a view ofthe spring' portion as it appears when struck from a sheet ofmetal.

My invention has reference to that class of shades in which the springs and the body. portion of the shade are formed in separate portions, andmy invention consists of a lamp-shade having its body made of glass or porcelain, of a frusto-conic, frusto-pyramidal, or frusto-polygonal forni, or of paper made in such forms and provided with a frusto conic, frusto pyramidal, or fuiste-polygonal spring portion or series of arms, formed substantially as hereinafter described.

Referring to the said drawing, A in Figs. 1 and 2 denotes a chimney 5 B, the body of the shade,

which is of a frusto-conical shape, and may be made of either glass, porcelain, paper, or other suitable fabric; The said body is surmounted by a spring portion, C, which is provided with one or more series of long, iiexible, tapering arms, D, whose free ends bear against the outer surface of the chimney, and by their tension against the same maintain the shade at any desirable elevation thereon. The said spring portion may be stamped from a single plate of metal, as shown in Fig. 3, its two ends being brought together and united so as to form the frustinn of a cone, or it may be spun up from a disk of metal into the proper form and the springs struck out by means of a die 5 or the spring portion may be composed of separate segmental parts. The base of the said part C is formed with a series of teeth or projections, a, extending downward therefrom,

the same being for securing the said part or the springs to the body of the shade. In applying such portion to the paper shade, shown in Fig. 1, a series of holes corresponding with the number of the said teeth is made around the lesser opening of the body portion. The circiunscribing spring portion neXthas its base brought in contact with the outer upper surface of the paper, the teeth a being bent upward at right angles and inserted in the said holes, after which they are upset or brought into close contact with the inner surface of the shade, which serves to fasten the said parts iirmly together or the body portion may overlap the spring portion, in lwhich case the teeth a would project out through the body portion and be upset on the outside, or, if preferable, the said teeth may be formed from a portion of the spring part and bent either inward or outward, in accordance with the disposition of the body portion, Whether overlying or underlying the said spring portion, and upset, so as to clamp or fasten the two parts firmly together. In applying the springs or spring portion to the body portion, when the latter is made of glass or porcelain, the body of the shade may be molded or formed with a series of holes around its upper part, but I prefer to apyly the spring part to its body, as shown in Fig. 2, in which the upper part of the shade is formed with a neck iiaring outward, and the teeth a, instead of passing through holes in the shade, are bent over and against such iiarin g neck; or the said springs or spring portion may be applied to a groove formed in the neck or upper portion of the body part, but the latter mode I do not consider as practicable as that first mentioned, as it brings the lower extremities of the springs in closer proximity with the flame or heat of the lamp.

I do not confine myself to the precise modes of aiiixing the springs to the body of the shade described, as any other may be adopted which will effectually secure the result.

I do not claim the invention as shown in Letters Patent granted J. B. Alexander on March 30, 1869, or April 5, 1870, or any feature or features thereof. N or do I claim the invention as shown and described in either of the patents 'rE'r OEEIcE.

granted to C. Reichmzm on September 30, 1862, or October 20,1863, or that shown in the patent of G. Vedekiiid of June 30, 1868.

I limit my invention to a shade, when provided With my specic springs, as shown and described.

Having described my invention, what I claim is as follows:

A shade for a lmnp or Argzmd burner having its body made of glass, porcelain, or paper, and

of si frusto-conic, frusto-pyramidal, or frusto-polygonal form, and provided With a series of long,` tapering arms or springs, D, formed and applied thereto, substantially as shown and described.

M. H. COLLINS.

fitnesses F. P. HALE, F. C. HALE. 

